Mechanical and rebuildable devices are for advanced users only”not for beginners or intermediate users. Understand Ohm's Law and how to use a multimeter or ohmmeter to check for the resistance or for shorts in their coil builds before utilizing these devices. These materials cannot be safely used by those without basic knowledge of how these devices function. Please ensure proper precautions are taken when using these devices so as to not cause damage and/or harm to the battery, mechanical mod, atomizer, yourself or others. firevapor will not be held liable or responsible for any damages caused by misuse or mishandling of these vaping products and devices. Use at your own risk.